Re:Re: [PATCH] mm: remove the redundancy code

[David Rientjes]

On Tue, 30 Jun 2020, 苏辉 wrote:

> I am sorry that i did not consider the memory hotplug case,
> and i think we should add a new param to distinguish two different cases.
> 

No need, we can simply continue setting zone->zone_start_pfn unless there 
is a bug to be fixed (and, if so, please send a bug report).  Removing it 
would not improve anything and would only increase risk.